Updated zlib BUILD file to support darwin-arm64

[UebelAndre]

When building on a darwin-arm64 machine, zlib fails with the following error. The changes here fix this.

ERROR: /private/var/tmp/_bazel_user/76282c66b0dfe3c5cb9a230bdc913a52/external/zlib/BUILD.bazel:3:11: Compiling gzwrite.c failed: (Exit 1): wrapped_clang failed: error executing command (from target @zlib//:zlib)
  (cd /private/var/tmp/_bazel_user/76282c66b0dfe3c5cb9a230bdc913a52/sandbox/darwin-sandbox/463/execroot/rules_rust && \
  exec env - \
    APPLE_SDK_PLATFORM=MacOSX \
    APPLE_SDK_VERSION_OVERRIDE=13.3 \
    PATH=/Users/user/Library/Caches/bazelisk/downloads/bazelbuild/bazel-6.1.2-darwin-arm64/bin:/Users/user/.cargo/bin \
    XCODE_VERSION_OVERRIDE=14.3.0.14E222b \
    ZERO_AR_DATE=1 \
  external/local_config_cc/wrapped_clang '-D_FORTIFY_SOURCE=1' -fstack-protector -fcolor-diagnostics -Wall -Wthread-safety -Wself-assign -fno-omit-frame-pointer -O0 -DDEBUG 'DEBUG_PREFIX_MAP_PWD=.' -iquote external/zlib -iquote bazel-out/darwin_arm64-fastbuild/bin/external/zlib -isystem external/zlib -isystem bazel-out/darwin_arm64-fastbuild/bin/external/zlib -MD -MF bazel-out/darwin_arm64-fastbuild/bin/external/zlib/_objs/zlib/gzwrite.d '-DBAZEL_CURRENT_REPOSITORY="zlib"' '-frandom-seed=bazel-out/darwin_arm64-fastbuild/bin/external/zlib/_objs/zlib/gzwrite.o' -isysroot __BAZEL_XCODE_SDKROOT__ -F__BAZEL_XCODE_SDKROOT__/System/Library/Frameworks -F__BAZEL_XCODE_DEVELOPER_DIR__/Platforms/MacOSX.platform/Developer/Library/Frameworks -no-canonical-prefixes -pthread -w '-Dverbose=-1' -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -target arm64-apple-macosx13.3 -c external/zlib/gzwrite.c -o bazel-out/darwin_arm64-fastbuild/bin/external/zlib/_objs/zlib/gzwrite.o)
# Configuration: 270fb1de579b4e65909040bb7af4ac5f9e5f6796f4be0228f4bb2f3343369513
# Execution platform: @local_config_platform//:host

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
external/zlib/gzwrite.c:89:20: error: call to undeclared function 'write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
            writ = write(state->fd, strm->next_in, put);
                   ^
external/zlib/gzwrite.c:89:20: note: did you mean 'fwrite'?
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.3.sdk/usr/include/stdio.h:165:9: note: 'fwrite' declared here
size_t   fwrite(const void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream) __DARWIN_ALIAS(fwrite);
         ^
external/zlib/gzwrite.c:110:24: error: call to undeclared function 'write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
                writ = write(state->fd, state->x.next, put);
                       ^
external/zlib/gzwrite.c:661:9: error: call to undeclared function 'close'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    if (close(state->fd) == -1)
        ^
3 errors generated.
Error in child process '/usr/bin/xcrun'. 1
Target @zlib//:zlib failed to build